Synthesis of C60 intercalated graphite

We report for the first time direct intercalation of C60 into graphite. In this new carbon solid, the two dimensional layers of C60, stacked between every graphite layers (stage 1), showed long range ordering with average separation of 1.27 nm between C60 layers as evident from transmission electron microscopy. An up-shift of Graphite Raman E2g2 mode and down-shift of fullerenes Raman Ag2 pentagonal pinch mode was observed due to charge transfer from graphite to C60.